CommTech FASTCOM ESCC-PCI-335, Hardware Reference Manual

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9
TESTING THE INSTALLATION
To fully test the installation of your FASTCOM: ESCC-PCI-335, you will
need to build a "loop back plug". Materials needed are a DB25 female
receptacle (solder-cup style) and a few short pieces of 20 or 24 AWG
stranded wire. Jumper the pins together on the DB25 as illustrated:
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
GND
RT-
DSR
RD+
7
16
DCD-
SD+
9
20
21
22
23
24
25
RT+
RD-
2
3
6
SD-
14
TT-
9
TT+
DTR
10
11
24
20
17
SIGNALS
NOTE: You can also create a "loop back" condition on the FASTCOM:
ESCC-PCI-335 without building an adapter plug by setting the On-
Board Loopback Control Switch (SW1) as follows:
485 CONTROL
ON
1 2 3 4
Both ESCC-PCI channels are looped back
However, we recommend that you make the "loop back" plug for two reasons: one, the clock circuit can be tested
and, two, you will not have to change switch settings from the factory defaults. In addition, our technical support
engineers can better service your technical questions if you have made the "loop back" plug. If you have made
the loop back plug, do not change the setting of the Mode switch.
FASTCOM: ESCC-PCI-335 WINDOWS 2000/XP TEST
1. Attach a loopback plug to the cable #1 (ESCC0, port 0)
2. From the Start button menu, select Run
3. Enter:
D:\fastcom_disks\esccp\nt\escctest\esccptest 0 h
Click the OK button
4. You should see:
Created esccdrv--ESCC0
ESCC 82532 version status:82
# receive buffers ready:0
resetting
HDLC settings
SETTINGS SUCCESSFUL:184
DTR not SET
DSR not SET
DTR SET
DSR SET
1
waiting for a key
read thread started
status thread started
1
The DSR SET could be a DSR not SET if you do not have a DTR -> DSR loopback wired
5. Press the letter "U" on the keyboard. You should see:
WRITEFILE esccdrv1024
TX returned TRUE